<!DOCTYPE html>
<html lang="zh-cn">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>CSS冲突：继承与层叠</title>
    <link rel="stylesheet" href="css_two.css">
</head>
<body>
    <h1 id="my_title" class="h1_color" style="color: magenta;">继承与层叠</h1>
    <p>段落内容</p>
    <div><p>div标签包含的p标签中内容</p></div>
</body>
</html>